The principles of logic and mathematics are true simply because we never allow them to be anything else. And the reason for this is that we cannot abandon them without contradicting ourselves, without sinning against the rules which govern the use of language, and so making our utterances self-stultifying. In other words, the truths of logic and mathematics are analytic propositions or tautologies.

Nothing earthly succeeds by ignoring heaven, nothing heavenly by ignoring the earth.

And therefore just as a brigand caught in broad daylight in the act cannot persuade us that he did not lift his knife in order to rob his victim of his purse, and had no thought of killing him, we too, it would seem, cannot persuade ourselves or others that the soldiers and policemen around us are not to guard us, but only for defense against foreign foes, and to regulate traffic and fetes and reviews; we cannot persuade ourselves and others that we do not know that the men do not like dying of hunger, bereft of the right to gain their subsistence from the earth on which they live; that they do not like working underground, in the water, or in the stifling heat, for ten to fourteen hours a day, at night in factories to manufacture objects for our pleasure. One would imagine it impossible to deny what is so obvious. Yet it is denied.

Take a book, the poorest one written, but read it with the passion that it is the only book you will read-ultimately you will read everything out of it, that is, as much as there was in yourself, and you could never get more out of reading, even if you read the best of books.

Man is certainly stark mad; he cannot make a worm, and yet he will be making gods by dozens.

Violence and freedom are the two endpoints on the scale of power.

You had that action and counteraction which, in the natural and in the political world, from the reciprocal struggle of discordant powers draws out the harmony of the universe.

To flee vice is the beginning of virtue, and to have got rid of folly is the beginning of wisdom.

The past treatment of Africans must naturally fill them with abhorrence of Christians; lead them to think our religion would make them more inhuman savages, if they embraced it; thus the gain of that trade has been pursued in opposition to the Redeemer's cause, and the happiness of men: Are we not, therefore, bound in duty to him and to them to repair these injuries, as far as possible, by taking some proper measures to instruct, not only the slaves here, but the Africans in their own countries? Primitive Christians laboured always to spread their Divine Religion; and this is equally our duty while there is an Heathen nation: But what singular obligations are we under to these injured people!

The true function of logic ... as applied to matters of experience ... is analytic rather than constructive; taken a priori, it shows the possibility of hitherto unsuspected alternatives more often than the impossibility of alternatives which seemed prima facie possible. Thus, while it liberates imagination as to what the world may be, it refuses to legislate as to what the world is.

The most momentous thing in human life is the art of winning the soul to good or to evil.

One crime has to be concealed by another.

Having destroyed the social power of the nobility and the guildmasters, the bourgeois also destroyed their political power. Having raised itself to the actual position of first class in society, it proclaims itself to be also the dominant political class. This it does through the introduction of the representative system which rests on bourgeois equality before the law and the recognition of free competition, and in European countries takes the form of constitutional monarchy. In these constitutional monarchies, only those who possess a certain capital are voters - that is to say, only members of the bourgeoisie. These bourgeois voters choose the deputies, and these bourgeois deputies, by using their right to refuse to vote taxes, choose a bourgeois government.

Our merchants and master-manufacturers complain much of the bad effects of high wages in raising the price, and thereby lessening the sale of their goods both at home and abroad. They say nothing concerning the bad effects of high profits. They are silent with regard to the pernicious effects of their own gains. They complain only of those of other people.

I speak for the slave when I say that I prefer the philanthropy of Captain Brown to that philanthropy which neither shoots me nor liberates me.

The individual, so far as he suffers from his wrongness and criticizes it, is to that extent consciously beyond it, and in at least possible touch with something higher, if anything higher exist. Along with the wrong part there is thus a better part of him, even though it may be but a most helpless germ. With which part he should identify his real being is by no means obvious at this stage; but when stage 2 (the stage of solution or salvation) arrives, the man identifies his real being with the germinal higher part of himself; and does so in the following way. He becomes conscious that this higher part is coterminous and continuous with a more of the same quality, which is operative in the universe outside of him, and which he can keep in working touch with, and in a fashion get on board of and save himself when all his lower being has gone to pieces in the wreck.

Nothing is more important than the formation of fictional concepts, which teach us at last to understand our own.

Is this fight against history part of the fight against a dimension of the mind in which centrifugal faculties and forces might develop-faculties and forces that might hinder the total coordination of the individual with the society? Remembrance of the Fast may give rise to dangerous insights, and the established society seems to be apprehensive of the subversive contents of memory. Remembrance is a mode of dissociation from the given facts, a mode of "mediation" which breaks, for short moments, the omnipresent power of the given facts. Memory recalls the terror and the hope that passed. Both come to life again.

Life is a business that does not cover the costs.

It is hard to have patience with people who say 'There is no death' or 'Death doesn't matter.' There is death. And whatever is matters. And whatever happens has consequences, and it and they are irrevocable and irreversible. You might as well say that birth doesn't matter.

With the sense of sight, the idea communicates the emotion, whereas, with sound, the emotion communicates the idea, which is more direct and therefore more powerful.

Time, and reflection, and discussion, have produced their natural effect on minds eminently intelligent and candid. No intermediate shades of opinion are now left. There is no twilight. The light has been divided from the darkness. Two parties are ranged in battle array against each other. There is the standard of monopoly. Here is the standard of free trade; and by the standard of free trade I pledge myself to stand firmly.

We are not simple people who believe in happiness; nor weaklings who crumple to the ground in distress at the first reverse; nor skeptics observing the bloody effort of marching humanity from the lofty heights of a mocking, sterile wit. Believing in the fight, though we entertain no illusions about it, we are armed against every disappointment.

Plagued by Western habits of either-or, dualistic thinking, we all may fail to understand that race, class and gender interconnect to sustain a corporate ruling class. In the language of African-American essayist bell hooks, they are interlocking systems of oppression. Neither Latina nor Anglo women should yield to the temptation of making a hierarchy of oppressions where battles are fought over whether racism is "worse" than sexism, or class oppression is "deeper" than racism, etc. Instead of hierarchies we need bridges which, after all, exist to make two ends meet.

I don't know what the life of a rascal is like since I have never been one, but that of an honest man is abominable. How few men are there whose passage on this stupid planet has been marked by really good and useful acts! I prostrate myself before the one of which one can say: pertransivit bene faciendo; the one who had been able to instruct, console, and relieve his fellows; the one who made great sacrifices for charity; these heroes of silent charity who hide themselves and expect nothing in this world. But what is the ordinary man? And how many are there in a thousand who can ask themselves without terror: what have I done in this world? In what way have I advanced the common good and what will remain of me of good or evil?

Government was intended to suppress injustice, but its effect has been to embody and perpetuate it.

I do not forgive myself for being born. It is as if, creeping into this world, I had profaned a mystery, betrayed some momentous pledge, committed a fault of nameless gravity. Yet in a less assured mood, birth seems a calamity I would be miserable not having known.

Intellect is invisible to the man who has none.

A further turn is to be found in some "unmasking" accounts of natural science, which aim to show that its pretensions to deliver the truth are unfounded, because of social forces that control its activities. Unlike the case of history, these do not use truths of the same kind; they do not apply science to the criticism of science. They apply the social sciences, and typically depend on the remarkable assumption that the sociology of knowledge is in a better position to deliver truth about science than science is to deliver truth about the world.

It is entirely clear that there is only one way in which great wars can be permanently prevented, and that is the establishment of an international government with a monopoly of serious armed force.

There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.

Perseus wore a magic cap that the monsters he hunted down might not see him.We draw the magic cap down over eyes and ears as a make-believe that there are no monsters.

Man's chief difference from the brutes lies in the exuberant excess of his subjective propensities - his preeminence over them simply and solely in the number and in the fantastic and unnecessary character of his wants, physical, moral, aesthetic, and intellectual. Had his whole life not been a quest for the superfluous, he would never have established himself as inexpugnably as he has done in the necessary.

A robot must obey the orders given it by human beings except where such orders would conflict with the First Law.

Long discourses, and philosophical readings, at best, amaze and confound, but do not instruct children. When I say, therefore, that they must be treated as rational creatures, I mean that you must make them sensible, by the mildness of your carriage, and in the composure even in the correction of them, that what you do is reasonable in you, and useful and necessary for them; and that it is not out of caprichio, passion or fancy, that you command or forbid them any thing.

In the lowest broad strata of the population, equally as in the highest and narrowest, are produced men of every kind of genius; man for man, your chance of genius is as good among the millions as among the units;-and class for class, what must it be! From all classes, not from certain hundreds now but from several millions, whatsoever man the gods had gifted with intellect and nobleness, and power to help his country, could be chosen: O Heavens, could,-if not by Tenpound Constituencies and the force of beer, then by a Reforming Premier with eyes in his head, who I think might do it quite infinitely better. Infinitely better. For ignobleness cannot, by the nature of it, choose the noble: no, there needs a seeing man who is himself noble, cognizant by internal experience of the symptoms of nobleness.

Society should treat all equally well who have deserved equally well of it, that is, who have deserved equally well absolutely. This is the highest abstract standard of social and distributive justice; towards which all institutions, and the efforts of all virtuous citizens, should be made in the utmost degree to converge.

Just because emotion is essential to that act of expression which produces a work of art, it is easy for inaccurate analysis to misconceive its mode of operation and conclude that the work of art has emotion for its significant content. One may cry out with joy or even weep upon seeing a friend from whom one has been long separated. The outcome is not an expressive object -- save to the onlooker. But if the emotion leads one to gather material that is affiliated to the mood which is aroused, a poem may result. In the direct outburst, an objective situation is the stimulus, the cause, of the emotion. In the poem, objective material becomes the content and matter of the emotion, not just its evocative occasion.

This bird sees the white man come and the Indian withdraw, but it withdraws not. Its untamed voice is still heard above the tinkling of the forge... It remains to remind us of aboriginal nature.

It is man's peculiar duty to love even those who wrong him.

One sticks one's finger into the soil to tell by the smell in what land one is: I stick my finger in existence - it smells of nothing. Where am I? Who am I? How came I here? What is this thing called the world? What does this world mean? Who is it that has lured me into the world? Why was I not consulted, why not made acquainted with its manners and customs instead of throwing me into the ranks, as if I had been bought by a kidnapper, a dealer in souls? How did I obtain an interest in this big enterprise they call reality? Why should I have an interest in it? Is it not a voluntary concern? And if I am to be compelled to take part in it, where is the director? I should like to make a remark to him. Is there no director? Whither shall I turn with my complaint?

In the past, there was a small leisure class and a larger working class. The leisure class enjoyed advantages for which there was no basis in social justice; this necessarily made it oppressive, limited its sympathies, and caused it to invent theories by which to justify its privileges.

From each as they choose, to each as they are chosen.

What we are destroying is nothing but houses of cards and we are clearing up the ground of language on which they stood.

There were nowhere more docile disciples of Lenin, Trotsky and Stalin than the Nazis were.